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3
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1answer
146 views

CountryData fails for some tags and properties

The problem has gone, presumably resolved by WRI. See kirma's comment. I'm using Mathematica 10.0.2 for Mac, and for the first time just tried CountryData. ...
24
votes
0answers
339 views

Summer Solstice Spurious Correlations Challenge

I came across this hilarious web site that has charts of bizarre "correlations" between disparate categories. Results like this: In the spirit of my summer solstice shedding spuriously earned rep. ...
6
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0answers
111 views

How to get star coordinates for a given time

In the documentation of StarData, there is an example that shows how to get the altitude of Sirius at a given time (in the horizontal coordinate system). However, ...
5
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0answers
192 views

Does Mathematica support collaborative filtering and recommendation systems?

Does Mathematica support collaborative filtering and recommendation systems such as can be found in Apache Mahout? I could not find any resources about advanced data mining techniques, beyond ...
4
votes
0answers
55 views

Combining separate CHColorStructureDiagrams to form one molecular structure

I am trying to attach a fructose molecule to a sucrose molecule by using information obtained from the following ...
4
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0answers
203 views

FinancialData property value at a given date

I was trying to get the volatility value of a specific equity on a given day. Based on the Mathematica Help, the syntax is ...
3
votes
0answers
33 views

What is the definition of “ConceptWeight” in WordData?

The documentation states that the "ConceptWeight" property is a rough estimate of semantic importance, I'd like to know how this is computed exactly, is there any way to find out?
3
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0answers
559 views

Curated data sometimes delivered in undefined units

This question may better go to Wolfram, but as it came up on the weekend, I thought I'd try here first. Take a look at the following: ...
2
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0answers
42 views

Inaccurate Heliocentric coordinates of PlanetaryMoonData

I have noticed that the heliocentric coordinates obtained with PlanetaryMoonData are very inaccurate. Fore example, consider the Galilean moons of Jupiter: ...
1
vote
0answers
146 views

Failure of CountryData due to connectivity?

Today I started researching the "Four colours theorem" and to do so I need data, regions for example. I tried using the following line: ...
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0answers
181 views

Why is CountryData function failing?

I am unable to get the CountryData function to work. I have tried FinancialData, CityData, ...
0
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0answers
39 views

FinancialData, comparing returns accounting for different holidays

At the moment I am trying out the FinancialData feature of mathematica. I am a bit struck with the problem of dropping returns for dates of a list of different stocks not being equal for all stocks ...
0
votes
0answers
58 views

How to access data from WHO Mortality Database

How to do I access the online data from the WHO Mortality Database, which is free to download. What are the Mathematica specific commands to directly load the xls file that can be obtained from this ...
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0answers
77 views

A list of cities in a time zone meeting a specified criterion

Is there a way to get Mathematica V9 or Wolfram|Alpha, given a city as input (e.g., "Urbana Champaign, IL"), to return a list of cities that fall in a time zone ...